JP2003154319A - Cleaning device for inner face of panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device for the inner face of a panel which is capable of uniformly applying a brush to the inner face of the panel and sufficiently removing a soil or deposits off the inner face of the panel. SOLUTION: The cleaning device 1,000 for the inner face of a panel comprises a table which is arranged opposite to the curved surface of the panel 3 and is linearly reciprocated, a cylinder which stretches a cylinder rod mounted on the table toward the panel 3, rods 7221 and 7222 supported, in a freely rocking manner, at the tip of the cylinder rod through a pin, a brush 727 which is fitted to the tips of the rods 7221 and 7222 and comes into contact with the curved surface by the elongation of the cylinder rod, a curved guide which is curved in the same way as is the curved surface and arranged apart from the panel 3, and at least a pair of rollers which are supported by the rods 7221 and 7222 and come into contact with the curved guide by the elongation of the cylinder rod.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curved surface cleaning device for cleaning an inner surface of a panel in a cathode ray tube.

[0002]

2. Description of the Related Art As shown in FIG. 14, a color cathode ray tube 1
Has a color phosphor screen 4 formed on the inner surface of the panel 3 of the cathode ray tube body 2, and a color selection mechanism 5 is arranged so as to face the color phosphor screen 4 with a predetermined distance (so-called grill height) GH.
And the electron gun 6 is arranged in the neck portion. As shown in FIG. 15, the color phosphor screen 4 has red phosphor stripes 8R, green phosphor stripes 8G, and blue phosphor stripes 8B sequentially and repeatedly arranged in one direction, and between the phosphor stripes 8R, 8G, and 8B. A so-called carbon stripe 9 which is a light-absorbing stripe is arranged on the surface.

In the manufacturing process of the color cathode-ray tube 1, when the fluorescent screen is formed, the panel and the color selection mechanism are temporarily separated, and a predetermined photosensitive coating film (for example, PVA photosensitive coating film or After forming a phosphor slurry coating film, the color selection mechanism is mounted again and the exposure coating device exposes the photosensitive coating film on the inner surface of the panel. In this fluorescent screen forming step, in order to form a high quality fluorescent screen, the color cathode ray tube 1 needs to wash the inner surface of the panel to remove dirt or deposits. Conventionally, the inner surface of the panel is cleaned by using a dedicated panel inner surface cleaning device.

By the way, in the panel inner surface cleaning device for cleaning the inner surface of the panel while rubbing the inner surface of the panel with a brush, it is necessary to stabilize the contact state and pressing force of the brush with respect to the inner surface of the panel because the inner surface of the panel has an arc shape.
A conventional panel inner surface cleaning device designed to stabilize the contact state and pressing force of such a brush is shown in FIGS.
Will be described with reference to.

FIG. 16 shows the overall construction of a conventional panel inner surface cleaning apparatus. The panel inner surface cleaning device includes a transfer unit 100 that transfers the panel 3 into the panel inner surface cleaning device, a panel Z pressing unit 200 that presses the panel 3,
Panel X positioning unit 30 for positioning the panel 3
0 and a panel Y positioning unit 400, and a panel cleaning unit 500 that scrubs and cleans the inner surface of the panel 3.

FIG. 17 shows a transfer unit of a conventional panel inner surface cleaning apparatus. The carrying unit 100 includes a box-shaped frame 101 and roller units 102 (1021, 1022) mounted on the frame 101. The roller unit 102 includes a box-shaped housing 103 provided on the frame 101 and the housing 10.
3 and a plurality of rollers 104 provided on the first and second rollers. The roller 104 is connected to a drive motor (not shown) to rotate.

FIG. 18 shows a panel Z pressing unit of a conventional panel inner surface cleaning device. The panel Z pressing unit 200 includes a gate-type support 201 mounted on the housing 103 and a pressure unit 202 (2021, 2022) provided on the gate-type support 201. The gate-shaped support column 201 is provided on the housing 103 and stands upright. The four standing plates 2031, 2032, 2033, 2
034 and these four standing plates 2031-20
The plate 204 is provided on the plate 34.

Pressure unit 202 (2021, 202)
2) is the two standing plates 2031 and 203 facing each other.
2, and a fixed plate 205 provided between 2033 and 2034, and a cylinder 206 provided on the fixed plate 205.
And a pad plate 207 provided on the cylinder plate 2061 of the cylinder 206 and two pads 208 provided on the pad plate 207. The pad 208 provided on the pad plate 207 moves up and down as the cylinder plate 2061 of the cylinder 206 operates.

FIG. 19 shows a panel X positioning unit of a conventional panel inner surface cleaning apparatus. The panel X positioning unit 300 includes a parallel chuck cylinder 301 provided on the back surface of the plate 204 of the portal 201 and support plates 302 provided on the cylinder plates 30121 and 30122 on both sides of the parallel chuck cylinder 301.
1, 3022 and respective support plates 3021, 302
2 rods 3031, 3032, 303 provided at both ends
3, 3034 and rods 3031, 3032, 303
Rollers 3041, 3042, 30 provided on 3, 3034
43 and 3044.

The rollers 3041 to 3044 provided on the rods 3303 to 3034 are expanded and contracted by the cylinder rod 3011 of the parallel chuck cylinder 301, whereby the cylinder plates 301 of the parallel chuck cylinder 301 are expanded.
21 and 30122 provided with support plates 3021 and 30
It operates together with 22 to widen or narrow its opposing spacing.

FIG. 20 shows a panel Y positioning unit of a conventional panel inner surface cleaning apparatus. The panel Y positioning unit 400 includes a block 401 provided on the upper surface of the plate 204 of the portal 201, a plate 402 provided on the block 401, a cylinder 403 suspended from the plate 402, and a cylinder plate 4032 of the cylinder 403.
Support plate 404 provided on the support plate 404, rods 4051 and 4052 provided on both ends of the support plate 404, and the rod 40
51 and 4052, rollers 4061 and 4062 are provided. The rollers 4061 and 4062 provided on the rods 4051 and 4052 are connected to the cylinder plate 40 by the extension of the cylinder rod 4031 of the cylinder 403.
It operates so as to descend together with the support plate 404 provided at 32.

FIG. 21 shows a panel cleaning unit of a conventional panel inner surface cleaning machine. The panel cleaning unit 500 includes a drive unit 501, a brush unit 502, and a guide unit 503 (5031, 5032).
The drive unit 501 includes a drive motor 504 provided on the back surface of the bottom plate 1011 of the frame 101, a disk 505 fixed to a motor shaft 5041 of the drive motor 504,
Pin A5061 provided on the disk 505, and pin A5061
A link bar A506 that moves around the center of rotation, a pin B5062 fixed to the link bar A506, and a pin B506.
2, a link bar B507 that is movable about the rotation center, a drive shaft 510 fixed to the link bar B507, and a frame 10.
Fixed plates 5081 and 5082 placed on the upper surface of the bottom plate 1011 of No. 1 and the fixed plates 508 of the respective
Rotation guides 5091, 509 mounted on 1, 5082
2 and. Motor shaft 504 of drive motor 501
1 rotates, the disk 505 rotates, and the drive shaft 510 that is held and rotated by the rotation guides 5091 and 5092 via the link bar A506 and the link bar B507.
Reciprocates in the direction of rotation.

The brush unit 502 includes shaft holders 5111 and 5112 fixed to the drive shaft 510 and the shaft 5 fixed to the shaft holders 5111 and 5112.
121, 5122 and this shaft 5121, 5122
Linear guides 5131 and 5132 movable along the plate, and a plate 514 fixed to the linear guides 5131 and 5132.
A rod 515 fixed to the drive shaft 510, a cylinder 516 fixed to the back surface of the plate 514 and the tip of the cylinder rod 5161 fixed to the rod 515, and linear guides 5171 and 517 fixed to the plate 514.
2, rods 5241 and 5242 movable in the linear guides 5171 and 5172, and rods 5241 and 524.
Stopper plates 5181, 51 fixed to the end of 2
82, spring retainers 5251 and 5252 fixed to rods 5241 and 5242, plate 514 and spring retainer 5
A compression spring 5261 provided between 251 and 5252;
5262, a brush base 521 fixed to the ends of the rods 5241 and 5242, a sponge-like brush 522 provided on the brush base 521, a nozzle 523 provided on the back surface of the plastic base 521, and a plate 514 placed at both ends. Brackets 5191 and 5192 and rollers 5201 and 5202 provided on the brackets 5191 and 5192.
Composed of and. The brush 522 is movable so as to rise as the cylinder rod 5161 of the cylinder 516 extends. The nozzle 523 serves as a water supply port used when cleaning the panel 3.

Guide unit 503 (5031, 503)
2) is the roller unit 102 (1021, 1022)
5271 and 5272 fixed to the side plates 1051 and 1052 fixed to the side surface of the
Brackets 5281, 5 fixed to 271, 5272
282 and support rods 5291, 5292, 5293, 5294 fixed to the brackets 5281, 5228.
And curved guides 5301 and 5302 fixed to the support rods 5291 to 5294.

The brush unit 502 includes a cylinder 516.
When the rollers 5201 and 5202 are lifted by the curved guides 5301 and 53 of the guide units 5031 and 5032.
By touching 02, the amount of increase is regulated. In addition, the brush unit 502 that has moved up is
4, the disk 505 rotates and the curved guides 5301, 5
The curving guide 53 is controlled by the rising amount 302.
It reciprocates in the direction of rotation along 01, 5302.

Next, the operation of the panel inner surface cleaning device constructed as described above will be described. First, the panel 3 is the roller 10 of the roller unit 102 in the transport unit 100.
4 is conveyed in a desired posture (see FIGS. 16 and 17).
reference). Next, the panel Y positioning unit 400 positions the panel 3 in the Y direction. By lowering the rollers 4061 and 4062 by the cylinder 403 in the panel Y positioning unit 400, the roller 10
The panel 3 conveyed by the rotation of 4 rotates the roller 406.
1, 4062 impedes its progress and the roller 104
By stopping the rotation of, the positioning in the Y direction, which is the traveling direction, is performed (see FIG. 20).

Next, the panel X positioning unit 300 positions the panel 3 in the X direction. Panel X
When the cylinder rod 3011 of the parallel chuck cylinder 301 in the positioning unit 300 is retracted, the opposing rollers 3041 to 3044 reduce the distance between them.
Position the panel 3 in the X direction so that it is sandwiched (see FIG. 1).
9). Next, the panel Z pressing unit 200 fixes the panel 3 in the lower surface direction. Pressure unit 202
The pad 208 presses the surface of the panel 3 downward by lowering the cylinder plate 2061 of the cylinder 206 (see FIG. 18).

FIG. 22 shows a panel Y positioning unit 400.
6 is a diagram showing a positional relationship between the panel cleaning unit 500 and the panel 3 which is positioned by the panel X positioning unit 300 and fixed by the panel Z positioning unit 200. FIG. After the fixing by the panel Z pressing unit 200 is completed, the inner surface of the panel 3 is cleaned by the panel cleaning unit 500. In cleaning, first, the cylinder rod 5 of the cylinder 516 of the brush unit 502 is
The expansion of 161 raises the brush 522 and the rollers 5201, 5202 together with the plate 514. At this time, the rollers 5201 and 5202 move the bending guide 530.
1, 5302 is contacted and the amount of rise is regulated.

The brush 522 contacts the inner surface of the panel 3 and is pressed against the inner surface of the panel 3 by the contracted reaction force of the compression springs 5261 and 5262 (see FIG. 23). Next, the drive motor 504 of the drive unit 501 rotates the disk 505, so that the brush 522 is rubbed against the inner surface of the panel 3 while being pressed against the inner surface of the panel 3. At this time, the nozzle 5 provided on the brush base 521
Water is supplied from 23, and the sponge-like brush 522 is
The inner surface of the panel 3 is washed with water.

[0020]

By the way, in the conventional panel inner surface cleaning apparatus described above, the curved guides 5301 and 5302 of the guide unit 503 are shaped to match the inner surface shape of the panel 3, so that The rising value of all the brush units 502 is constant, that is, the pressing pressure of the brush 522 against the inner surface of the panel 3 is constant. However, since the shape of the inner surface of the panel 3 and the locus of the brush 522 operating in an arc shape do not match, the panel 3
As shown in FIG. 24, the surface of the brush 522 at the end of No. 2 did not contact the inner surface of the panel 3 uniformly. Also,
In the panel inner surface cleaning device, the shape of the panel to be cleaned is not always constant, and several types of panels having different inner surface shapes are cleaned. 25 to 27 show a state in which a panel whose inner surface shape is almost flat is washed. 25 is a diagram showing the positional relationship between the positioned panel 3 and the panel cleaning unit 500, and FIG. 26 shows the brush 522 as the panel 3
FIG. 27 is a diagram showing a state in which the brush 522 is pressed against the inner surface of FIG. 27, and FIG. 27 is a diagram showing a state in which the brush 522 is operated by the drive unit 501 and positioned at the end of the panel 3. As shown in FIG. 27, it can be seen that the surface of the brush 522 does not uniformly contact the inner surface of the panel 3 and the shape is distorted. For this reason, the conventional panel inner surface cleaning device having the above-described configuration cannot uniformly press the brush 522 against the inner surface of the panel 3 and cannot sufficiently remove dirt or deposits on the inner surface of the panel. there were. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a panel inner surface cleaning device capable of sufficiently pressing a brush against the panel inner surface to sufficiently remove dirt or deposits on the panel inner surface.

[0021]

A panel inner surface cleaning apparatus according to claim 1 according to the present invention for achieving the above object, comprises:
A table that is arranged to face the curved surface of the panel and that reciprocates linearly in the range between the curved one end and the curved other end of the panel, and a cylinder that is installed on the table and that expands and contracts a cylinder rod toward the curved surface of the panel. A rod that is swingably supported by the tip of the cylinder rod through a pin in a direction orthogonal to the axis of the cylinder rod and orthogonal to the linear movement direction of the table; A brush that is in contact with the curved surface of the panel due to the extension of the rod, a curved guide that is curved in the same manner as the curved surface of the panel and is spaced apart from the panel in the direction of the table, and the same direction as the pin. Is supported by the rod so that each of the centers of rotation is located on a line segment orthogonal to the axis of the rod. Characterized by comprising at least a pair of rollers in contact with the curved guide by extension of the cylinder rod.

In this panel inner surface cleaning device, a curved guide having the same shape as the inner surface of the panel is provided, and a plurality of rollers are pressed against the curved guide so that the brush operates along the inner surface shape of the panel. Moreover, the rod on which the brush is mounted swings about the pin as a fulcrum, so that the surface of the brush comes into uniform contact with the inner surface of the panel. As a result, the brushes uniformly contact along the inner surface of the panel, stable cleaning can be performed anywhere on the inner surface of the panel, and dirt or deposits on the inner surface of the panel can be sufficiently removed. Become.

A panel inner surface cleaning device according to a second aspect of the present invention is the panel inner surface cleaning device according to the first aspect, wherein the brush is pressed against the curved surface of the panel by a biasing means.

In this panel inner surface cleaning device, in addition to the cushioning property of the brush itself, the brush is pressed against the curved surface by the elastic force of the urging means, and the brush is appropriately deformed to make more uniform contact with the curved surface. The cleaning effect of the brush is further enhanced.

A panel inner surface cleaning apparatus according to a third aspect is the panel inner surface cleaning apparatus according to the first or second aspect, wherein the curved guide is replaceable with a type according to a curved surface of a different panel to be cleaned. It is attached to.

In this panel inner surface cleaning device, the brush can be replaced with a curved guide corresponding to the curved surface of the panel to be cleaned, so that the brush is always moved along a locus corresponding to the curved surface of the panel to be cleaned. It allows for uniform contact of the brush to all types of panels.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a panel inner surface cleaning apparatus according to the present invention will be described in detail below with reference to the drawings. 1 is an overall configuration diagram of a panel inner surface cleaning apparatus according to the present invention, and FIG. 2 is a configuration diagram of a transport unit of the panel inner surface cleaning apparatus shown in FIG.

A panel inner surface cleaning apparatus 1 according to the present embodiment
000 is a transfer unit 600 that transfers the panel 3 into the panel inner surface cleaning apparatus, a panel Z pressing unit 200 that presses the panel 3, a panel X positioning unit 300 that positions the panel 3, a panel Y positioning unit 400, and a panel. 3 includes a panel inner surface cleaning unit 700 that scrubs and cleans the inner surface of the panel 3.

The transport unit 600 comprises a box-shaped frame 601 and a roller unit 602 (6021, 6022) mounted on the frame 601. The roller unit 602 (6021, 6022) has a box-shaped housing 603 provided in the frame 601 and a plurality of rollers 604 provided in the housing 603. The roller 604 is connected to a drive motor so as to be rotationally driven.

FIG. 3 is a block diagram of the panel Z pressing unit of the panel inner surface cleaning apparatus shown in FIG. The panel Z pressing unit 200 includes a gate-shaped support column 201 mounted on the housing 603 and a pressure unit 202 (2021, 2022) provided on the gate-shaped support column 201. The gate-shaped support column 201 is provided on the housing 603 and stands upright. The four standing plates 2031, 2032, 2033,
2034 and these four standing plates 2031-2
The plate 204 provided on the 034 is provided.

Pressure unit 202 (2021, 202)
2) is the two standing plates 2031 and 203 facing each other.
2, and a fixed plate 205 provided between 2033 and 2034, and a cylinder 206 provided on the fixed plate 205.
And a pad plate 207 provided on the cylinder plate 2061 of the cylinder 206 and two pads 208 provided on the pad plate 207. The pad 208 provided on the pad plate 207 moves up and down as the cylinder plate 2061 of the cylinder 206 operates.

FIG. 4 is a block diagram of the panel X positioning unit of the panel inner surface cleaning apparatus shown in FIG. The panel X positioning unit 300 includes the plate 2 of the gate column 201.
04, the parallel chuck cylinder 301 provided on the back surface, the support plates 3021 and 3022 provided on the cylinder plates 30121 and 30122 located on both sides of the parallel chuck cylinder 301, and the respective support plates 302.
Rods 3031 and 303 provided at both ends of 1, 3022
2, 3033, 3034 and rods 3031, 303
Rollers 3041, 30 provided on 2, 3033, 3034
42, 3043, and 3044.

The rollers 3041 to 3044 provided on the rods 3031 to 3034 have their respective cylinder plates 301 of the parallel chuck cylinder 301 expanded and contracted by the cylinder rod 3011 of the parallel chuck cylinder 301.
21 and 30122 provided with support plates 3021 and 30
It operates together with 22 to widen or narrow its opposing spacing.

FIG. 5 is a block diagram of the panel Y positioning unit of the panel inner surface cleaning apparatus shown in FIG. The panel Y positioning unit 400 includes the plate 2 of the gate-shaped support column 201.
Block 401 provided on the upper surface of
A plate 402 provided above, a cylinder 403 suspended from the plate 402, a support plate 404 provided on a cylinder plate 4032 of the cylinder 403, and rods 4051 and 4052 provided at both ends of the support plate 404.
And a roller 406 provided on the rods 4051 and 4052.
1 and 4062. Rods 4051, 405
The rollers 4061 and 4062 provided on the second cylinder 40
When the third cylinder rod 4031 extends, the cylinder rod 4031 operates so as to descend together with the support plate 404 provided on the cylinder plate 4032.

FIG. 6 is a block diagram of the panel inner surface cleaning unit of the panel inner surface cleaning device shown in FIG. 1, and FIG. 7 is a side view in the X direction of FIG. The panel cleaning unit 700 includes a drive unit 701, a brush unit 702, and a guide unit 503 (5031, 5032). The drive unit 701 includes the side plate 60 of the frame 601.
51, 6052 with plates 7041, 7042
And a guide rail 70511 provided on the plate 7041
And a movable block 70512, a first linear guide portion 7051, a second linear guide portion 7052 including a guide rail 70521 provided on the plate 7042 and a movable block 70522, and a first linear guide portion 7051.
Movable block 70512 and second linear guide portion 70
Brackets 7061 and 7062 attached to the movable block 70522 of 52 and brackets 7061 and 7062
The first board 707 attached to the plate 704, the cylinder 708 provided on the plate 7041, the cylinder table 7081 of the cylinder 708, and the connecting bracket 709 fixed to the first board 707.

The cylinder 708 operates and the cylinder table 7081 reciprocates in the linear direction within the range between the curved one end and the other curved end of the panel 3, whereby the first linear guide portion 7051 and the second linear guide portion 7052. The first substrate 707 placed on is moved horizontally in the X direction.

The brush unit 702 includes the first substrate 70.
7 and the shaft holders 7101 and 7102 fixed to the shaft holders 7101 and 7102.
111, 7112, linear guides 7121, 7122 movable along the shafts 7111, 7112, a cylinder 714 fixed to the first substrate 707 to expand and contract the cylinder rod 7141 toward the curved surface of the panel 3, and a cylinder 714. A second substrate 713 fixed to the cylinder rod 7141 and the linear guides 7121 and 7122, and hinges A7151 and 7152 fixed to the second substrate 713.
And a pin 717 perpendicular to the axis of the cylinder rod 7141 and perpendicular to the linear movement direction of the table 7081.
Hinge B716 that rotates by being connected at 1, 7172
1, 7162, a third substrate 718 fixed to the hinges B7161, 7162, and roller brackets 7191, 7192, 7 symmetrically fixed to both ends of the third substrate 718.
193, 7194 and the respective roller brackets 7191
To rollers 7201, 7202, 720 provided to 7194
3, 7204, linear guides 7211 and 7212 fixed to the third substrate 718, and linear guides 7211 and 721.
The rods 7221 and 7222 that move inside 2 and swing around the pins 7171 and 7172, and the rod 7
Stopper plate 7 fixed to the ends of 221 and 7222
231, 7232, spring retainers 7241 and 7242 fixed to rods 7221 and 7222, and third substrate 718.
And compression springs 7251 and 7252 which are biasing means provided between the spring retainers 7241 and 7242, and the rod 7221.
A brush base 726 fixed to the end of 7222, a sponge-like brush 727 provided on the brush base 726,
It is composed of a nozzle 728 provided on the back surface of the brush base 726.

In the structure of the brush unit 702, the brush 727 contacts the curved surface of the panel 3 by the extension of the cylinder rod 7141. Also, the bending guide 5
The curved surfaces 301 and 5302 are the same as the curved surface of the panel 3, and are arranged apart from the panel 3 in the direction of the table 7081. Further, the rollers 7201 to 7204 rotate about a rotation axis in the same direction as the pins 7171 and 7172, and the rotation centers of the rollers 7201 to 7204 are arranged on the line segments orthogonal to the axes of the rods 7221 and 7222. And is supported by the curved guides 5301 and 5302 by the extension of the cylinder rod 7141.

The openings 7291 and 7292 of the second substrate provided in the second substrate 713 are linear guides 7211 and 721.
The size is such that 2 can be inserted. The openings 7301 and 7302 of the third substrate provided in the third substrate 718 are sized to insert the shafts 7111 and 7112.
The brush 727 is the cylinder rod 71 of the cylinder 714.
When 41 is extended, it is movable so as to rise.
The nozzle 728 serves as a water supply port used for cleaning the panel 3.

Guide unit 503 (5031, 503)
2) are plates 5271 and 5272 fixed to the side plates 6051 and 6052 fixed to the side surfaces of the roller units 6021 and 6022, and plates 5271 and 52.
Brackets 5281 and 5282 fixed to 72, and support rods 529 fixed to brackets 5281 and 5282
1, 5292, 5293, 5294 and support rod 52
Curved guides 5301 and 530 fixed to 91 to 5294
2 and. This curved guide 5301, 5302
Is detachably attached to the brackets 5281 and 5282 by screwing the support rods 5291 to 5294 with a nut or the like. Then, the bending guide 530
1, 5302 have various curved shapes,
The panel 3 to be cleaned can be easily replaced with another one according to the shape of the inner surface of the panel 3.

The brush unit 702 includes a cylinder 714.
The rollers 7201 to 7204 move the curved guides 5301 and 532 of the guide units 5031 and 5032 when the rollers 7201 to 7204 move upward.
By touching 302, its rise is regulated. In addition, the third substrate 718 of the brush unit 702 that has been raised.
Are rollers 7201 and 72 arranged on the third substrate 718.
02 is a curved guide 5301 of the guide unit 5031
Further, the rollers 7203 and 7204 are in contact with the curved guide 5302 of the guide unit 5302, so that the angle is defined with the pins 7171 and 7172 as fulcrums.

That is, the rod 722 is formed on the third substrate 718.
1, the brush 727 provided via the 7222 is the roller 7
The rising amount is regulated by contacting the curved guides 5301 and 5302 with 201 to 7204. Also, the brush 72
In FIG. 7, the cylinders 708 of the drive unit 701 move the cylinder table 7081 in the X direction, so that the rollers 7201 to 7204 are curved guides 5301 and 5302.
The rods 7221 and 7222 roll along the pin 71.
Reciprocating movement (swinging) in the direction of rotation around 71 and 7172
However, it swings within a predetermined angle range.

Next, the operation of the panel inner surface cleaning apparatus 1000 according to this embodiment will be described. First, the panel 3 is conveyed on the rollers 604 of the roller unit 602 in the conveyance unit 600 with the inner surface facing downward (see FIG. 1). Next, the panel Y positioning unit 400 positions the panel 3 in the Y direction. Cylinder 403 in panel Y positioning unit 400 causes roller 4
When the rollers 061 and 4062 are lowered, the roller 604 is
The panel 3 conveyed by the rotation of
The movement of the roller 604 is stopped by 4062, and the rotation of the roller 604 is stopped, whereby the roller is positioned in the Y direction, which is the direction of movement thereof (see FIG. 5).

Next, the panel X positioning unit 300 positions the panel 3 in the X direction. Panel X
When the cylinder rod 3011 of the parallel chuck cylinder 301 in the positioning unit 300 is retracted, the rollers 3041 and 3042 and 3043 and 3044 that face each other reduce the distance therebetween and sandwich the panel 3.
Positioning in the X direction is performed (see FIG. 4).

Next, the panel Z pressing unit 200 fixes the panel 3 in the lower surface direction. Cylinder plate 20 of cylinder 206 in pressurizing unit 202
The pad 208 presses the surface of the panel 3 toward the lower surface when 61 is lowered (see FIG. 3).

In FIG. 8, the panel 3 is conveyed to the panel inner surface cleaning apparatus, positioned by the panel Y positioning unit 400 and the panel X positioning unit 300, and fixed by the panel Z positioning unit 200, and the panel cleaning unit 700. It is a figure which shows the positional relationship. After fixing by the panel Z pressing unit 200 is completed,
The inner surface of the panel 3 is cleaned by the panel cleaning unit 700. In the cleaning, first, the cylinder rod 7141 of the cylinder 714 in the brush unit 702 extends to raise the brush 727 and the rollers 7201 to 7204 together with the third substrate 718. At this time, roller 7
201 to 7204 contact the curved guides 5301 and 5302 of the guide unit 503, and the amount of rise thereof is regulated. In addition, the brush 727 contacts the inner surface of the panel 3,
Panel 3 by the contracted reaction force of compression springs 7251 and 7252
Is pressed against the inner surface of the (see FIG. 9).

Next, the cylinder table 7081 of the cylinder 708 in the drive unit 701 is moved, so that the rollers 7201 to 7204 are curved guides 530.
Roll on curved surfaces 1, 5302. As a result, the rods 7221 and 7222 swing around the pins 7171 and 7172, and the brush 727 is constantly pressed so as to be substantially parallel to the inner surface of the panel 3 for scrubbing (FIG. 1).
0). Further, at this time, water is supplied from the nozzle 728 provided in the brush base 726, and the sponge-like brush 727 cleans the inner surface of the panel 3 while sufficiently containing water.

Panel inner surface cleaning apparatus 1 according to the present embodiment
000, the curved guide 530 of the guide unit 503
By setting the shapes of 1 and 5302 to match the shape of the inner surface of the panel 3, the amount of rise of the brush unit 702 relative to the panel 3 is constant, that is, the brush 7 with respect to the inner surface of the panel 3.
The pressing pressure of 27 becomes constant. Also, the brush 727
Rollers 7201 to 7204 are curved guides 5301,
By abutting on 5302, the pressing direction becomes normal to the arc-shaped inner surface shape of panel 3, so that even on the inner surface of curved panel 3, as shown in FIG. The surface contacts the inner surface of the panel 3 almost uniformly.

11 to 13 show a state in which a panel whose inner surface shape is almost flat is washed. 11 is an operation explanatory view showing a positional relationship between the positioned panel 3 and the panel cleaning unit 700, FIG. 12 is an operation explanatory view showing a state where the brush 727 is pressed against the inner surface of the panel 3, and FIG. 13 is a brush 727. FIG. 6 is an operation explanatory diagram showing a state in which is operated by the drive unit 701 and is located at the end of the panel 3. It can be seen that even in such a flat panel, the surface of the brush 727 contacts the inner surface of the panel 3 almost uniformly.

According to the above panel inner surface cleaning apparatus 1000, since the brush 727 uniformly contacts with the inner surface shape of the panel 3, it is possible to perform stable cleaning at any place on the inner surface of the panel 3. It is possible to sufficiently remove the dirt or the adhered substances. As a result, a high quality color cathode ray tube can be provided.

Further, since stable cleaning can be performed anywhere on the inner surface of the panel 3, it is possible to reduce the defective product generation rate in the production line. Furthermore, the panel inner surface cleaning device 1000 is configured such that the curved guide 530
Since 1 and 5302 are detachable, it is possible to easily adapt to all types of panels by replacing and mounting the curved guides 5301 and 5302 corresponding to the inner surface shape of the panel 3. The main mechanism of the panel inner surface cleaning apparatus 1000 according to the present invention can be applied to cleaning not only the panel but also members having any curved surface or flat surface, and in that case, the same effects as the above-described effects can be obtained. Can be obtained.

In the panel inner surface cleaning apparatus 1000 according to the above embodiment, the brush 72 on the inner surface of the panel 3 is used.
Although a case where a compression spring is used as the pressing means of 7 has been described as an example, other than this, a pneumatic cylinder or the like may be used as the compression means.

[0053]

As described in detail above, according to the panel inner surface cleaning apparatus of the present invention, a cylinder is provided on the table that reciprocates along the curved surface of the panel, and the rod is attached to the cylinder rod of this cylinder. It is swingably supported, a brush is attached to the tip of this rod, and a bending guide that bends in the same way as the curved surface of the panel is arranged apart from the panel, and a roller that abuts this bending guide is supported by the rod. Therefore, the brushes uniformly contact along the shape of the inner surface of the panel, stable cleaning can be performed anywhere on the inner surface of the panel, and dirt or deposits on the inner surface of the panel can be sufficiently removed. As a result, a high quality color cathode ray tube can be provided.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a panel inner surface cleaning apparatus according to the present invention.

FIG. 2 is a configuration diagram of a transfer unit of the panel inner surface cleaning apparatus shown in FIG.

3 is a configuration diagram of a panel Z pressing unit of the panel inner surface cleaning apparatus shown in FIG.

FIG. 4 is a configuration diagram of a panel X positioning unit of the panel inner surface cleaning apparatus shown in FIG.

5 is a configuration diagram of a panel Y positioning unit of the panel inner surface cleaning apparatus shown in FIG.

FIG. 6 is a configuration diagram of a panel inner surface cleaning unit of the panel inner surface cleaning apparatus shown in FIG.

FIG. 7 is a side view in the X direction of FIG.

FIG. 8 is an operation explanatory view showing the positional relationship between the panel positioned by the panel Y positioning unit and the panel X positioning unit of the panel inner surface cleaning apparatus according to the present invention and the panel cleaning unit.

FIG. 9 is an operation explanatory view of a state where the brush of the panel inner surface cleaning apparatus according to the present invention is pressed against the panel inner surface.

FIG. 10 is an operation explanatory view showing a state of the brush pressed against the panel end of the panel inner surface cleaning apparatus according to the present invention.

FIG. 11 is an operation explanatory view showing the positional relationship between the positioned flat panel and the panel cleaning unit of the panel inner surface cleaning apparatus according to the present invention.

FIG. 12 is an operation explanatory view showing a state where the brush of the panel inner surface cleaning apparatus according to the present invention is pressed against the inner surface of the flat panel.

FIG. 13 is an operation explanatory view showing a state of the brush pressed against the flat panel end of the panel inner surface cleaning apparatus according to the present invention.

FIG. 14 is a configuration diagram of a color cathode ray tube.

FIG. 15 is an enlarged view of the phosphor screen shown in FIG.

FIG. 16 is an overall configuration diagram of a conventional panel inner surface cleaning device.

FIG. 17 is a configuration diagram showing a transport unit of a conventional panel inner surface cleaning apparatus.

FIG. 18 is a configuration diagram showing a panel Z pressing unit of a conventional panel inner surface cleaning apparatus.

FIG. 19 is a configuration diagram showing a panel X positioning unit of a conventional panel inner surface cleaning apparatus.

FIG. 20 is a configuration diagram showing a panel Y positioning unit of a conventional panel inner surface cleaning apparatus.

FIG. 21 is a configuration diagram showing a panel cleaning unit of a conventional panel inner surface cleaning machine.

FIG. 22 is a panel Y in a conventional panel inner surface cleaning apparatus.
It is an operation explanatory view showing a positional relationship between a panel positioned by a positioning unit and a panel X positioning unit and a panel cleaning unit.

FIG. 23 is an operation explanatory view in the state where the brush is pressed against the panel inner surface in the conventional panel inner surface cleaning device.

FIG. 24 is an operation explanatory view showing a state of the brush pressed against the panel end in the conventional panel inner surface cleaning apparatus.

FIG. 25 is an operation explanatory view showing the positional relationship between the positioned flat panel and the panel cleaning unit in the conventional panel inner surface cleaning apparatus.

FIG. 26 is an explanatory diagram of an operation in the state where the brush is pressed against the inner surface of the flat panel in the conventional panel inner surface cleaning device.

FIG. 27 is an operation explanatory view showing the state of the brush pressed against the end of the flat panel in the conventional panel inner surface cleaning apparatus.

[Explanation of symbols]

3 ... Panel, 714 ... Cylinder, 727 ... Brush, 53
01, 5302 ... Curved guide, 7081 ... Table, 7
141 ... Cylinder rod, 7171, 7172 ... Pin,
7201, 7202, 7203, 7204 ... Roller, 7
221, 7222 ... Rod, 7251, 7252 ... Compression spring (biasing means), 1000 ... Panel inner surface cleaning device

Continued front page    F term (reference) 3B116 AA14 AA23 AB42 BA02 BA08                       BA23 BB22                 3B201 AA14 AA23 AB42 BA02 BA08                       BA23 BB22 BB92                 4G059 AA07 AB09 AC30                 5C012 BD04

Claims (3)

[Claims] 1. A table, which is arranged so as to face a curved surface of a panel and reciprocates in a linear direction within a range between one curved end and the other curved end of the panel, and a cylinder rod installed on the table facing the curved surface of the panel. A cylinder to be expanded and contracted, a rod swingably supported by the tip of the cylinder rod through a pin in a direction orthogonal to the axis of the cylinder rod and orthogonal to the linear movement direction of the table, and the tip of the rod. A brush that is attached to the curved surface of the panel due to the extension of the cylinder rod, and a curved guide that is curved in the same manner as the curved surface of the panel and is spaced apart from the panel in the direction of the table. , The center of rotation is arranged around a rotation axis in the same direction as the pin and is arranged on a line segment orthogonal to the axis of the rod. Panel inner surface cleaning apparatus characterized by comprising at least a pair of rollers in contact with the curved guide being supported on the rod by extension of the cylinder rod. 2. The panel inner surface cleaning apparatus according to claim 1, wherein the brush is pressed against a curved surface of the panel by a biasing unit. 3. The panel inner surface cleaning apparatus according to claim 1 or 2, wherein the bending guide is replaceably attached to a type corresponding to a curved surface of a different panel to be cleaned. Panel inner surface cleaning device.